£19 Find Cheap Flights from Portugal to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 23/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Portugal to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portugal to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Portugal to London

KAYAK's recommended return flight deals from the most popular airlines that fly from Portugal to London.
Discover the best prices for you by selecting your travel dates on KAYAK.
Ryanair Logo
07:55 - 10:40LIS-STN
2h 45mdirect
Ryanair Logo
06:25 - 09:20STN-LIS
2h 55mdirect
£41Ryanair
Find Deal
Fri, 23 May - Sun, 1 Jun
Ryanair Logo
07:55 - 10:40LIS-STN
2h 45mdirect
Ryanair Logo
17:20 - 20:15STN-LIS
2h 55mdirect
£44Ryanair
Find Deal
Fri, 23 May - Sun, 1 Jun
easyJet Logo
06:40 - 09:25LIS-LGW
2h 45mdirect
easyJet Logo
20:35 - 23:25LGW-LIS
2h 50mdirect
£61easyJet
Find Deal
Fri, 23 May - Tue, 24 Jun
easyJet Logo
06:55 - 09:20OPO-LGW
2h 25mdirect
easyJet Logo
06:10 - 08:35LGW-OPO
2h 25mdirect
£62easyJet
Find Deal
Sat, 17 May - Mon, 2 Jun
 Logo
06:40 - 09:25LIS-LGW
2h 45mdirect
 Logo
20:10 - 08:15LGW-LIS
12h 05m1 stop
Thu, 15 May - Sat, 17 May
 Logo
06:40 - 09:25LIS-LGW
2h 45mdirect
 Logo
15:40 - 07:00LGW-LIS
15h 20m1 stop
Fri, 23 May - Tue, 24 Jun
TAP AIR PORTUGAL Logo
12:55 - 15:35LIS-LGW
2h 40mdirect
TAP AIR PORTUGAL Logo
10:35 - 13:25LGW-LIS
2h 50mdirect
£91TAP AIR PORTUGAL
Find Deal
Wed, 1 Oct - Sun, 5 Oct
TAP AIR PORTUGAL Logo
09:05 - 20:25LIS-LGW
11h 20m1 stop
TAP AIR PORTUGAL Logo
10:35 - 13:25LGW-LIS
2h 50mdirect
£92TAP AIR PORTUGAL
Find Deal
Sat, 4 Oct - Sat, 11 Oct
British Airways Logo
09:55 - 12:05OPO-LGW
2h 10mdirect
British Airways Logo
18:00 - 20:20LGW-OPO
2h 20mdirect
£180British Airways
Find Deal
Thu, 15 May - Mon, 19 May
British Airways Logo
21:10 - 23:30OPO-LGW
2h 20mdirect
British Airways Logo
06:25 - 09:05LGW-OPO
2h 40mdirect
£183British Airways
Find Deal
Fri, 23 May - Thu, 29 May
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KAYAK's insights & trends for flights to London

Get data-powered insights and trends into flights to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to London?

The average price of all round-trip flights to London clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to London is Friday where round-trip tickets can be as cheap as £109. On the other hand, the most expensive day to fly is Monday, where round-trip prices are £147 on average.

What is the cheapest month to fly to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to London is March, where tickets cost £80 on average for return flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from Portugal is £149 and £148 respectively. For one-way flights, the best month to travel is February with an average price of £102.

What is the cheapest time of day to fly to London?

The average price for all round-trip flights to London depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to London is generally at night, when round-trip flights cost £156 on average. The most expensive time of day to fly to London is generally in the evening, which is peak travel time and where the average cost of a ticket is £198.

What is a good deal for flights to London?

If you’re looking for cheap airfare to London, 25% of our users found tickets to London for the following prices or less: From Faro £27 return, from Porto £67 return, from Funchal £91 return.

How far in advance should I book a flight to London?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price, you should book around 8 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Stansted Airport (STN), with an average flight price of £90.

Good to know - Cheap tickets from Portugal to London

Low season

July

High season

December

Cheapest flight

£19
Best time to beat the crowds but there is an average 34% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Lisbon to London Stansted Airport

FAQs - booking London flights

  • Which London airport is closest to central London?

    The distance between London City and the city centre of London is 8 miles, which makes it the closest of the 6 London airports airports. London Heathrow Airport is 14 miles away from the centre, London Gatwick Airport is 24 miles away, and London Luton Airport is 28 miles away from the city centre London.

  • How much is a flight to London?

    On average, a flight to London costs £120. The cheapest price found on KAYAK in the last 2 weeks cost £14 and departed from Faro Airport.

  • How does KAYAK find such low prices on flights to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to London are there each week?

    Each week there are around 787 direct flights from within Portugal to London. The most common day for departures is Friday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to London

  • Looking for a cheap flight from Portugal to London? 25% of our users found flights on this route for £134 or less one-way and £30 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Top 5 airlines serving from Portugal to London

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
TAP AIR PORTUGALOverall score based on 1851 reviews
7.8Crew
6.2Food
7.0Boarding
7.1Comfort
6.3Entertainment
Airline reviews

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

10.0 ExcellentJanet, Apr 2025LIS - MIA
Read more TAP AIR PORTUGAL reviews

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

Boarding went fast. Lisbon's gates are too small for the flights they serve.

Great pilot, textbook landing in madeira. Everything else, from booking to checkin, plane quality, seat amenities, crew engagement, and overall experience were significantly below standard. I WOULD NOT FLY TAP IF THERE IS ANY OTHER OPTION.

Worst: long walk to baggage claim Best: left on time

Got in on time. Food was the worst ever. Comfort was terrible. Check in was incredibly bad.

The flight schedules are better than some airlines. Their website is terrible, it doesn’t store any information so every time you fly you have to re-enter the data. The flight was late taking off but we still got to our destination on time.

Flight delayed by >1 hour. Long boarding involving riding a shuttle to the plane.

When I tried to enter my identity details, your app told me information was missing but did not highlight the missing data. This was frustrating. Also, there was an unexplained delay of about 2 hours in taking off. This was also frustrating. Otherwise the experience was good.

The flight was delayed without any type of notice. After passing through the gate, people were lined up at the passages boarding bridge standing for about half hour with no clue when they can board after ‘boarding’. No explanation or indication of the new departure time. All you can do is standing up and waiting.

First, I was moved from my scheduled flight at 10:45 to 6:30. Bad form as I had a scheduled lesson in the morning that I couldn't get a refund for. Second, we were bused out to the plane and bused back to the terminal and sat and sat all with NO explanation until the end of the long wait. Third, once we boarded the plane, we again sat for at least an hour WITH NO EXPLANATORY ANNOUNCEMENT. Plane left and arrived 2 hours late. I missed a train connection adding hours to my trip home. Lastly, it's time the airport is upgraded or TAP gets priority for walk-on gates. As a 74 year old, carrying my carry on luggage up and down stairs between the terminal and the plane is a pain. Might be the last time I fly TAP.

We were charged a ridiculous amount for a name spelling error on ticket which I would’ve corrected if I received pre-check info more than 1/2hr before flight. Then we were told at ticket counter that our bags were fine for boarding but then we’re charged another ridiculous amount to take in our luggage despite being told differently. Flight itself was great. Charges were unfair.

Apart from an email about re configuring passenger seating less than 24hrs before flying it was all good.

There were a lot (4 I think) of EasyJet flights leaving Agadir, we arrived two and a half ours before our flight. Very slow to get through the booking in, passport control and security!! We had booked in on line but had to Queue with others who had not to drop our bags off!,

We boarded and then sat on the tarmac for an hour….probably not E Jets fault. But the gentleman that checked us in and took our luggage was exceptionally friendly and calming for early morning/ confused passengers. As always, it’s the people that make or break an experience, right?

I was hesitant to book with a low cost airline due to previous experience but Easy Jet surpassed my expectations. I would definitely book a flight with them again! Seemless booking, upfront about baggage fees, professional, and helpful staff.

Kayak sent several notifications that the flight was late. This contradicted the information on the airport boards. This was extremely confusing and we very nearly missed the flight purely because we double checked with the info desk when the flight stays said’closed’. Kayak notifications are therefore unreliable and pointlesa

Usual issues with flight delay. Perennial problem of travel by plane.

i didnt go this was a hacker booked this flight on my debit card !

Delayed almost 2 hours sitting on plane. No updates at all from flight deck and virtually no updates from cabin crew

Long delay resulted in my being unable to catch a train home and resulted in an additional £76 cost for an Uber

The flight arrived within 15 minutes of schedule. We hate the cattle-like boarding process seen often in Europe. After your boarding pass is checked by the airline staff, you wait standing up in an area with no seating for several minutes.

Awful as usual the air stewardess loved her own voice and would not stop talking on coms for 2hrs please please please shut up I can’t hear my headphones and don’t want to buy juty free

Big delay on run way not much explanation why, missed a important meeting in Dublin, maybe if they did nt persist measuring everyone bag over 2 cm we would have got off on time.

The lady at the boarding gate was so rude. She was challenging people being in priority and looking them up and down as if they weren’t dressed for first class. This was Ryan air priority. We all sit in the same seats. She loudly called out to embarrass a man who she believed had cheated and got in the priority line. He had a valid priority ticket and even worked for Ryanair. Also challenging visas insisting people download them until they proved on the government website it wasn’t required to print. The Ryanair employee who was challenged said she is always like this. She also pulled people from regular boarding as they were fashionably dressed and upgraded them to priority and changed their seats. That was comical. I think she felt she should be working for Emirates first class, although they would t have stood for her rude behaviour

Their customer service needs an overhaul. I wish we could access them and the could be more helpful. Also, the website has been crashing and I had numerous technical errors. My flight was cancelled and we spent so much time trying to get help because the tech was failing.

On time boarding, on time departure and early arrival. As it should be. Yes, the comfort and benefits are very poor, but therefore the ticket is 6 times cheaper than with a flag carrier. So I am not complaining about it. You get what you pay for.

Boarding was fast and efficient. The crew was super friendly. Since it’s a budget airline and it’s a short flight, I can’t expect food or entertainment.

Flight details on public information screen were misleading and wrong.

Good value for the money. Good leg room. Take off and landing very good.

Seats are very small, I’m not a big person, but the person beside me was using his seat and half of mine… and this person was a bit gross but not a lot…

Boarding was delayed and we had to get on buses to plane so group # didn't matter. No food or drinks served gratis. Seats were small, knees smashed into the seat ahead, didn't recline. Crew was excellent though.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

Our original booking with Kayak -our first experience -was exactly what we wanted and worked well. Updates were friendly and reassuring as were the contacts with UnderPricer so a big win-win. We learned a lot on your reliability and will definitely put you on our organisational list for the future.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

Plane and seats ok. Dinners going and coming back were not fantastic. Breakfast from Seattle to London fine with bagel, cheese and fried egg. Second meal on London to Seattle not my favorite of kind of pizza sauce in a pastry. Came with water about three different times on each of my long flights. Staff on all very friendly and helpful.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

We ordered kids meals - which were not kid friendly at all! (the breakfast that is - scrambled eggs on a bed of spinach and asparagus?)

Uncomfortable seats. Crazy seat assignments separating families when they could easily have put them together. Good communication from pilot about arrival time after delay in departure. Toilet ran out of water in sink. Snack box poor for flight of this length.

The bed in Club class was not very comfortable, everything else was good.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The crew at Check-in was very helpful. It’s was appreciate.

It’s a budget airline. You get what you pay for. They insisted on getting us out of the gate and into our slot on time. They got us to the destination safely. Aircraft was clean and well maintained. What more could we want

Half an hour delay. Squeezed into a small Departure Lounge with very few seats. Noisy flight with screaming unruly kids. Loud IPads and Phones. Heaven!

Were delayed in the airport for 5 hours with no explanation. Flight kept getting delayed by an hour at a time and wizz air staff were no where to be found

The flight was delayed 5 hours and I'm and invalid,I wan a refund for this

The cabin crew on that flight were super fantastic and super helpful. They were so polite and considerate that i felt i travelled with a 5star airline.

Delayed delayed delayed - always with Wizzair. Staff were friendly and well mannered but clearly the company is unorganized and the aircrafts are outdated.

It's a budget airline. Great for short flight. Smooth landing.

4 hr delay and only told less than 2hrs before. Only given water and nuts on the flight as complimentary service. Left to wait in rain before boarding.

To be honest I did not like anything. Communication to why my flight was cancelled mid air 2 and half hours into my flight. Customer service desk were not helpful with providing information or a solution on what can be done.

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Everything you need to know for your flight to London

Cabin class types available on flights to London

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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